We look at the division of 14161309 by 519 
The aim is to understand the frequency of 519 in 14161309.

Advancing to step 1:
The number 519 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 519

On to step 2:
If we divide 14 by 519, we get 0 and a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Take the next digit (1) from the dividend and append it to 14, then repeat: 141 / 519

Moving on to step 3:
When dividing 141 by 519, we get 0 with a remainder of 141.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 141 to get 141.
Bring next digit (6) of the dividend behind the 141 and repeat the process: 1416 / 519

Moving on to step 4:
The number 519 fits into 1416 2 times, leaving a remainder of 378.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1038 away from 1416, we end up with 378.
Append the next digit (1) from the dividend to 378 and continue with: 3781 / 519

Let's proceed to step 5:
3781 divided by 519 is 7 with a remainder of 148.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Deduct 3633 from 3781 and we're left with 148.
Take the next digit (3) from the dividend and append it to 148, then repeat: 1483 / 519

Moving on to step 6:
The number 519 fits into 1483 2 times, leaving a remainder of 445.
The next digit of our result is 2. 
Result so far: 272.0
Subtract 1038 from 1483 to get 445.
Append the next digit (0) from the dividend to 445 and continue with: 4450 / 519

On to step 7:
4450 divided by 519 is 8 with a remainder of 298.
Record the quotient 8 as the next digit in the result. 
Result so far: 2728.0
The remainder is 298 after subtracting 4152 from 4450.
Fetch the next digit (9) from the dividend, attach it to 298 and continue: 2989 / 519

Going ahead to step 8:
519 can be fit into 2989 5 times, resulting in a remainder of 394.
Record the quotient 5 as the next digit in the result. 
Result so far: 27285.0
If we subtract 2595 from 2989, we get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 9:
519 goes into 3940 7 times with a remainder of 307.
Put 7 as the next digit of the answer. 
Result so far: 27285.7
Subtracting 3633 from 3940 leaves us with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Advancing to step 10:
519 can be fit into 3070 5 times, resulting in a remainder of 475.
Write down 5 as next digit of the result. 
Result so far: 27285.75
Subtracting 2595 from 3070 leaves us with 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Moving on to step 11:
519 goes into 4750 9 times with a remainder of 79.
Record the quotient 9 as the next digit in the result. 
Result so far: 27285.759
If we take 4671 away from 4750, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 12:
The number 519 fits into 790 1 times, leaving a remainder of 271.
The next digit of our result is 1. 
Result so far: 27285.7591
If we subtract 519 from 790, we get 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Moving on to step 13:
The number 519 fits into 2710 5 times, leaving a remainder of 115.
The next digit of our result is 5. 
Result so far: 27285.75915
Deduct 2595 from 2710 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Moving on to step 14:
519 can be fit into 1150 2 times, resulting in a remainder of 112.
Use 2 as the next digit of our solution. 
Result so far: 27285.759152
The remainder is 112 after subtracting 1038 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 15:
1120 divided by 519 is 2 with a remainder of 82.
Write down 2 as next digit of the result. 
Result so far: 27285.7591522
Subtract 1038 from 1120 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The final result is 27285.7591522 with a remainder of 8.2e-07.